78461539324 has 48 divisors (see below), whose sum is σ = 159931316160. Its totient is φ = 32987865600.

The previous prime is 78461539283. The next prime is 78461539337. The reversal of 78461539324 is 42393516487.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180984 + ... + 435520.

It is an arithmetic number, because the mean of its divisors is an integer number (3331902420).

Almost surely, 2^78461539324 is an apocalyptic number.

It is an amenable number.

78461539324 is an abundant number, since it is smaller than the sum of its proper divisors (81469776836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78461539324 is a wasteful number, since it uses less digits than its factorization.

78461539324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254758 (or 254756 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 52.

The spelling of 78461539324 in words is "seventy-eight billion, four hundred sixty-one million, five hundred thirty-nine thousand, three hundred twenty-four".